./unrealircd hot-patch: now that we have rehash output and status codes

in 6.0.2+ we can inform the user whether the rehash actually succeeded
or not. This was already shown in the output, but we now also change
the last few lines of output to make very clear if the rehash failed
that the currently running UnrealIRCd is not patched.

unrealircd.in

@@ -259,8 +259,15 @@ elif [ "$1" = "hot-patch" -o "$1" = "cold-patch" ] ; then
 	cd @SCRIPTDIR@
 	if [ "$1" = "hot-patch" ]; then
 		echo "Patch applied successfully and installed. Rehashing your IRCd..."
-		./unrealircd rehash
-		echo "Done! All should be good now."
+		if ./unrealircd rehash; then
+			echo "Patch installed and server rehashed correctly. All should be good now!"
+		else
+			echo "Patching the source code and recompiling succeeded,"
+			echo "however rehashing the current UnrealIRCd process FAILED"
+			echo "so it is NOT running the patched code yet."
+			echo "IMPORTANT: Check error output above!"
+			exit 1
+		fi
 	else
 		echo "Patch applied successfully. You must now restart your IRC server."
 	fi